Golang HTTP上传文件到S3使用tusd仅上传元数据

package main

import (
    "net/http"

    "github.com/tus/tusd"
    "github.com/tus/tusd/filestore"
)

func main() {
    // 创建一个tusd文件存储
    store := filestore.FileStore{
        Path: "./data",
    }

    // 创建一个tusd配置项
    config := tusd.Config{
        BasePath:              "/files/",
        Store:                 store,
        NotifyCompleteUploads: true,
    }

    // 创建一个tusd处理器
    handler, err := tusd.NewUnroutedHandler(config)
    if err != nil {
        panic(err)
    }

    // 将tusd处理器注册到HTTP服务器路由中
    http.Handle("/files/", http.StripPrefix("/files/", handler))
    http.ListenAndServe(":8080", nil)
}

package main

import (
    "fmt"
    "net/http"
    "os"

    "github.com/go-resty/resty/v2"
)

func main() {
    client := resty.New()

    // 设置上传文件的元数据
    metaData := map[string]string{
        "filename": "example.jpg",
        "filesize": "1024",
        "mimetype": "image/jpeg",
    }

    // 发送HTTP请求上传文件元数据到tusd服务器
    resp, err := client.R().
        SetHeader("Upload-Metadata", encodeMetadata(metaData)).
        Post("http://localhost:8080/files/")
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(1)
    }

    fmt.Println("Response:", resp)
}

func encodeMetadata(metadata map[string]string) string {
    var encoded string
    for key, value := range metadata {
        encoded += key + " " + base64.URLEncoding.EncodeToString([]byte(value)) + ","
    }
    return encoded[:len(encoded)-1]
}